| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stretch type gate door in which inclination of mobile vertical frame may be adjusted even though a plurality of pantograph mechanisms are vertically arranged.SOLUTION: A plurality of pantograph mechanisms 6, 7 are vertically arranged, in which a plurality of inclination links 31, 32, 41, 42 that are respectively inclined upward to the right or downward to the right are arranged in horizontal direction and are assembled in a cross shape so as to be stretchable. A stretch type gate door includes a mobile vertical frame 9 bridging each of mobile side end parts of the plurality of pantograph mechanisms 6, 7. Connecting parts to end parts of the inclination links 31, 32, 41, 42 are arranged at plural positions in vertical direction of the mobile vertical frame 9. The plural connecting parts comprise, for example, one first connecting part Z1 regulating relative movement in vertical direction and stretch direction, and one or more second connecting parts Z2 regulating the relative movement in vertical direction and allowing relative movement in stretch direction. One second connecting part Z2 is respectively arranged on the pantograph mechanism 7 comprising no first connecting part Z1 among the plurality of pantograph mechanism 6, 7.</p> |
